JEFFERSON COUNTY, Alabama - A small mercury spill at a Jefferson County school has prompted the evacuation of two classrooms and the gymnasium.

Jefferson County sheriff's Chief Deputy Randy Christian said a McAdory Middle School student was handling a bottle from a thermostat filled with mercury when it accidentally dropped and broke on the floor of the classroom.

Christian said two classrooms and they gym were emptied as a precaution only. Firefighters were called to remove the hazardous material, and there were no reported injuries.